GNU Radio 3.7.2git-47-g5cfb1151 C++ API
ofdm_insert_preamble.h
Go to the documentation of this file.
1
/* -*- c++ -*- */
2
/*
3
* Copyright 2007,2011,2012 Free Software Foundation, Inc.
4
*
5
* This file is part of GNU Radio
6
*
7
* GNU Radio is free software; you can redistribute it and/or modify
8
* it under the terms of the GNU General Public License as published by
9
* the Free Software Foundation; either version 3, or (at your option)
10
* any later version.
11
*
12
* GNU Radio is distributed in the hope that it will be useful,
13
* but WITHOUT ANY WARRANTY; without even the implied warranty of
14
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15
* GNU General Public License for more details.
16
*
17
* You should have received a copy of the GNU General Public License along
18
* with this program; if not, write to the Free Software Foundation, Inc.,
19
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20
*/
21
22
#ifndef INCLUDED_DIGITAL_OFDM_INSERT_PREAMBLE_H
23
#define INCLUDED_DIGITAL_OFDM_INSERT_PREAMBLE_H
24
25
#include <
gnuradio/digital/api.h
>
26
#include <
gnuradio/block.h
>
27
#include <vector>
28
29
namespace
gr {
30
namespace
digital {
31
32
/*!
33
* \brief insert "pre-modulated" preamble symbols before each payload.
34
* \ingroup ofdm_blk
35
* \ingroup synchronizers_blk
36
*
37
* \details
38
* <pre>
39
* input 1: stream of vectors of gr_complex [fft_length]
40
* These are the modulated symbols of the payload.
41
*
42
* input 2: stream of char. The LSB indicates whether the corresponding
43
* symbol on input 1 is the first symbol of the payload or not.
44
* It's a 1 if the corresponding symbol is the first symbol,
45
* otherwise 0.
46
*
47
* N.B., this implies that there must be at least 1 symbol in the payload.
48
*
49
* output 1: stream of vectors of gr_complex [fft_length]
50
* These include the preamble symbols and the payload symbols.
51
*
52
* output 2: stream of char. The LSB indicates whether the corresponding
53
* symbol on input 1 is the first symbol of a packet (i.e., the
54
* first symbol of the preamble.) It's a 1 if the corresponding
55
* symbol is the first symbol, otherwise 0.
56
* </pre>
57
*/
58
class
DIGITAL_API
ofdm_insert_preamble
:
virtual
public
block
59
{
60
public
:
61
// gr::digital::ofdm_insert_preamble::sptr
62
typedef
boost::shared_ptr<ofdm_insert_preamble>
sptr
;
63
64
/*!
65
* Make an OFDM preamble inserter block.
66
*
67
* \param fft_length length of each symbol in samples.
68
* \param preamble vector of symbols that represent the pre-modulated preamble.
69
*/
70
static
sptr
make(
int
fft_length,
71
const
std::vector<std::vector<gr_complex> > &preamble);
72
73
virtual
void
enter_preamble() = 0;
74
};
75
76
}
/* namespace digital */
77
}
/* namespace gr */
78
79
#endif
/* INCLUDED_DIGITAL_OFDM_INSERT_PREAMBLE_H */
gnuradio
gr-digital
include
gnuradio
digital
ofdm_insert_preamble.h
Generated by
1.8.1.1